Michele Scarabelli plays a bad girl and struggles with the redhead heroine for possession of a gun. The catfight starts at 0:33.
https://www.youtube.com/watch?v=aergJRJFcQ4
This is a very nice struggle. Not some silly, catty battle over a guy, but a desperate, high-stakes, life-or-death fight. Helen, the hard-faced blonde, has murdered her husband and knows she'll be facing a life sentence if she's apprehended. But when her accomplice arrives and gets the drop on private detective Nick Slaughter and his sidekick, Sylvie, a feisty redhead, she thinks she's got away with it. And if Nick and Sylvie have to be killed too, along with the woman they tried to kill earlier, to cover up the crime, so be it.
But the would-be murder victim kicks the gun out of the accomplice's hand, and it goes sliding across the floor. Helen's face is a mix of panic and determination, and she goes for the gun first, but the feisty redhead reacts instantly and tackles her roughly to the floor before she can get to it. What follows is a short but desperate struggle. Helen is reaching for the gun, and so nearly gets her hand on it, only for Sylvie to pull her back at the last moment. They roll over in a tangle, then lunge for the gun again, both of them reaching desperately for it, both of them getting their hands on it briefly before Sylvie gets the better of Helen, scooping up the gun and holding the blonde murderess in check.
The look on Helen's face says it all: her expression is part glaring hatred at Sylvie, who she underestimated, and part absolute despair: she knows that she so nearly got to the gun and would have got away with everything, but was tackled down and overpowered by the smaller redhead, and now faces a life sentence in prison.